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authorAvneesh Saluja <asaluja@gmail.com>2013-03-28 18:28:16 -0700
committerAvneesh Saluja <asaluja@gmail.com>2013-03-28 18:28:16 -0700
commit3d8d656fa7911524e0e6885647173474524e0784 (patch)
tree81b1ee2fcb67980376d03f0aa48e42e53abff222 /gi/posterior-regularisation/prjava/src/util/DigammaFunction.java
parentbe7f57fdd484e063775d7abf083b9fa4c403b610 (diff)
parent96fedabebafe7a38a6d5928be8fff767e411d705 (diff)
fixed conflicts
Diffstat (limited to 'gi/posterior-regularisation/prjava/src/util/DigammaFunction.java')
-rw-r--r--gi/posterior-regularisation/prjava/src/util/DigammaFunction.java21
1 files changed, 0 insertions, 21 deletions
diff --git a/gi/posterior-regularisation/prjava/src/util/DigammaFunction.java b/gi/posterior-regularisation/prjava/src/util/DigammaFunction.java
deleted file mode 100644
index ff1478ad..00000000
--- a/gi/posterior-regularisation/prjava/src/util/DigammaFunction.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package util;
-
-public class DigammaFunction {
- public static double expDigamma(double number){
- if(number==0)return number;
- return Math.exp(digamma(number));
- }
-
- public static double digamma(double number){
- if(number > 7){
- return digammApprox(number-0.5);
- }else{
- return digamma(number+1) - 1.0/number;
- }
- }
-
- private static double digammApprox(double value){
- return Math.log(value) + 0.04167*Math.pow(value, -2) - 0.00729*Math.pow(value, -4)
- + 0.00384*Math.pow(value, -6) - 0.00413*Math.pow(value, -8);
- }
-}